Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Cutting lines out using sed I presume. Post 12555 by Perderabo on Thursday 3rd of January 2002 09:28:05 AM
Old 01-03-2002
Try:
sed -n '1p;$p' inputfile
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Cutting n consecutive lines from a file...

Hi, I have this problem of separating 10 consecutive lines from a file, say starting from 21 to 30... I have used a filter like this.. head -n 30 myfile | tail -n 10 Is there a simpler way than this? (2 Replies)
Discussion started by: Vishnu
2 Replies

2. UNIX for Dummies Questions & Answers

Cutting the top two lines, and also charachters below.

Hey all. I have a file that I am trying to cut information out of. We have a script that shows us all of our Radio Scanners that are being used and I'm writing a script that clears all of the context off of the scanners. The script that runs shows us this information below... |emp_id ... (5 Replies)
Discussion started by: jalge2
5 Replies

3. Shell Programming and Scripting

Question about SED cutting and renaming

Hi. I've posted a couple of questions on my little project before, and it's been helpful, but things just keep changing on my end. Allow me to explain. I'm getting hundreds of .txt files, each containing the results of a database search from a newspaper. EAch file contains the news stories... (10 Replies)
Discussion started by: spindoctor
10 Replies

4. Shell Programming and Scripting

need help cutting consecutive lines with sed or awk

HI All, I want to cut 5 lines after a pattern using sed or awk. can any one tell me how to do it ? (2 Replies)
Discussion started by: raghin
2 Replies

5. Shell Programming and Scripting

Cutting specific lines from a file

Hi, I have a file named Mani.txt. The contents are like this cat Mani.txt -------------------------------------------------------- Hi there how r u My Name is Mani Bye ------------------------------------------------------------ I want to cut the first and last lines from the file... (15 Replies)
Discussion started by: pathanjalireddy
15 Replies

6. Shell Programming and Scripting

cutting lines

Dear All, Is there a way to cut the lines that have been "head" Here is what i m trying to do Please advice there is file name dummy.txt now i am trying to head this file 4 time by using a loop and every time this file is head with different values e.g in first instance it will... (7 Replies)
Discussion started by: jojo123
7 Replies

7. Shell Programming and Scripting

Cutting fields from lines with multiple spaces

Please see the following code, between "status" and "OK" exists many spaces, I want to get status OK . how to ignore multi spaces? If tab exists in the spaces, how to ignore it ? Is there other commands can replace cut? $ echo 'drv status OK'| cut... (3 Replies)
Discussion started by: 915086731
3 Replies

8. UNIX for Dummies Questions & Answers

Cutting lines if conditions are met

Hi. I am not sure how to solve this problem and if it is possible to do so with scripting. :wall: Let's say I have this data: A 12345 12360 A 12359 12380 A 12381 12390 A 12400 12450 A 12451 12460 B 23456 23460 B 23470 23480 B 23477 23505 I wan't each line to be compared in this... (5 Replies)
Discussion started by: danieladna
5 Replies

9. UNIX for Dummies Questions & Answers

sed expression-help cutting name

Hi, I have some sample names. The regions in red are what I want to extract. AIB13-positive AIB13-blank AIB13-1116-0022999 GNX13-1521-0003532 Each of the sample names are represented as variable ${SAMPLE} within a loop. I've tried extracting the middle region with the following code... (2 Replies)
Discussion started by: jdilts
2 Replies

10. UNIX for Dummies Questions & Answers

Cutting specific columns from lines

I am trying to remove columns 81-97 from a line that can be as long as 114 characters. Because a number of lines might not have under 80 characters, using the cut command following by paste could be a problem. While sed might work, is there some other utility that could do this more easily? ... (9 Replies)
Discussion started by: wbport
9 Replies
cut(1)							      General Commands Manual							    cut(1)

Name
       cut - cut out selected fields of each line of a file

Syntax
       cut -clist [file1 file2...]
       cut -flist [-dchar] [-s] [file1 file2...]

Description
       Use  the  command to cut out columns from a table or fields from each line of a file.  The fields as specified by list can be fixed length,
       that is, character positions as on a punched card (-c option), or the length can vary from line to line and be marked with a  field  delim-
       iter character like tab (-f option).  The command can be used as a filter.  If no files are given, the standard input is used.

       Use to make horizontal ``cuts'' (by context) through a file, or to put files together in columns.  To reorder columns in a table, use and

Options
       list	   Specifies  ranges  that must be a comma-separated list of integer field numbers in increasing order.  With optional - indicates
		   ranges as in the -o option of nroff/troff for page ranges; for example, 1,4,7; 1-3,8; -5,10 (short for 1-5,10);  or	3-  (short
		   for third through last field).

       -clist	   Specifies character positions to be cut out.  For example, -c1-72 would pass the first 72 characters of each line.

       -flist	   Specifies  the  fields  to be cut out.  For example, -f1,7 copies the first and seventh field only.	Lines with no field delim-
		   iters are passed through intact (useful for table subheadings), unless -s is specified.

       -dchar	   Uses the specified character as the field delimiter.  Default is tab.  Space or other characters with special  meaning  to  the
		   shell must be quoted.  The -d option is used only in combination with the -f option, according to XPG3 and SVID2/SVID3.

       -s	   Suppresses  lines  with  no	delimiter  characters.	 Unless  specified, lines with no delimiters are passed through untouched.
		   Either the -c or -f option must be specified.

Examples
       Mapping of user IDs to names:
       cut -d: -f1,5 /etc/passwd
       To set name to the current login name for the csh shell:
       set name=`who am i | cut -f1 -d" "`
       To set name to the current login name for the sh, sh5, and ksh shells:
       name=`who am i | cut -f1 -d" "`

Diagnostics
       "line too long"	   A line can have no more than 511 characters or fields.

       "bad list for c/f option"
			   Missing -c or -f option or incorrectly specified list.  No error occurs if a line has fewer fields than the list  calls
			   for.

       "no fields"	   The list is empty.

See Also
       grep(1), paste(1)

																	    cut(1)
All times are GMT -4. The time now is 02:48 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy